--source include/have_innodb.inc
--source include/have_partition.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc

CREATE TABLE t1 (a INT, b VARCHAR(10)) ENGINE=InnoDB
STATS_PERSISTENT=1 STATS_AUTO_RECALC=0
PARTITION BY RANGE(a)
(PARTITION pa VALUES LESS THAN (3),
PARTITION pb VALUES LESS THAN (5));

INSERT INTO t1 VALUES(2,'two'),(2,'two'),(4,'four');

connect ddl,localhost,root,,test;
SET DEBUG_SYNC = 'inplace_after_index_build SIGNAL go WAIT_FOR done';
send ALTER TABLE t1 ADD UNIQUE KEY (a,b(3));

connection default;
SET DEBUG_SYNC = 'now WAIT_FOR go';
BEGIN;
SELECT * FROM t1 FOR UPDATE;
SET DEBUG_SYNC = 'now SIGNAL done';

connection ddl;
--error ER_DUP_ENTRY
reap;

connection default;
DELETE FROM t1;

SET DEBUG_SYNC = 'RESET';

CHECK TABLE t1;

CREATE TABLE t(a INT, b VARCHAR(10)) ENGINE=InnoDB
STATS_PERSISTENT=1 STATS_AUTO_RECALC=1;
RENAME TABLE t TO u;
DELETE FROM mysql.innodb_table_stats WHERE table_name='u';
DELETE FROM mysql.innodb_index_stats WHERE table_name='u';

send SET STATEMENT debug_dbug='+d,dict_stats_save_exit_notify_and_wait' FOR
SELECT * FROM u;

connection ddl;
SET DEBUG_SYNC='open_tables_after_open_and_process_table
WAIT_FOR dict_stats_save_finished';
send ALTER TABLE t1 EXCHANGE PARTITION pb WITH TABLE u;

connect sync,localhost,root;
let $wait_condition=
  select count(*) = 1 from information_schema.processlist
  where state = 'debug sync point: now'
  and info like 'SET STATEMENT debug_dbug%SELECT * FROM u';
--source include/wait_condition.inc
let $wait_condition=
  select count(*) = 1 from information_schema.processlist
  where state = 'Waiting for table metadata lock'
  and info like 'ALTER TABLE t1 EXCHANGE PARTITION pb WITH TABLE u';
--source include/wait_condition.inc
SET DEBUG_SYNC='now SIGNAL dict_stats_save_unblock';
disconnect sync;

connection default;
reap;
connection ddl;
reap;
disconnect ddl;
connection default;
SELECT * FROM u;
SET DEBUG_SYNC = 'RESET';

DROP TABLE t1,u;